What powers 
ruisdael-observatory.nl?
Last seen Jul 2026 · 22 technologies across 13 categories
CMS
WordPress
since May 2024
Databases
MySQL
since May 2024
Font scripts
Font Awesome
since May 2024
Google Font API
since May 2024
JavaScript libraries
Miscellaneous
RSS
since May 2024
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since May 2024
Programming languages
PHP
since May 2024
Security
Really Simple SSL & Security
since May 2024
Video players
YouTube
since May 2024
Web servers
Nginx
since May 2024
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
4.01 / 10 · ranked #558,440 of all domains
25 referring domains · OpenPageRank
Infrastructure
- Hosted on HOSTING2GO (185.135.241.119, IPv6)
- DNS: hosting2go.nl
- Email: ruisdael-observatory.nl
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- SSL: Sectigo, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 213,230, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted